Showing papers on "Penicillium griseofulvum published in 1990"
TL;DR: In this article, the production of patulin and griseofulvin by 49 different isolates of Penicillium griseoenofulvum Dierckx was analyzed by high-performance liquid chromatography.
Abstract: The production of patulin and griseofulvin by 49 different isolates of Penicillium griseofulvum Dierckx was analyzed by high-performance liquid chromatography. Eleven isolates were obtained from pistachio nuts, 37 were obtained from wheat seeds, and 1 was obtained from the American Type Culture Collection. Activities of 19 enzymes were also assayed by the API ZYM system. From these results it may be deduced that there are two different groups among the strains tested which cannot be distinguished by morphological and cultural characteristics. One group of isolates did not produce detectable amounts of patulin and griseofulvin when grown in sucrose-yeast extract and Wickerham media, while enzymatic activities were quantitatively distinct from the other group, which produced patulin and griseofulvin in variable proportions. Leucine arylamidase, phosphoamidase, and beta-D-glucosidase are the main enzymes with differing activities between the two groups. Differences in physiological characteristics among isolates of a single species reveal shortcomings in the classification of the penicillia based only on morphological criteria. Thus, determination of the ability to yield mycotoxins and antibiotics as well as determination of enzymatic activities appear to be very valuable tools in the taxonomy of these fungi and for food toxicology.
16 citations
TL;DR: A critical review of the literature revealed that only seven other species of Penicillium have been convincingly documented as agents of penicilliosis on the basis of histologic and cultural findings.
Abstract: A sudden fatal illness developed in a group of New World toucanets held captive in Finland. Necropsy studies on one of the birds revealed the presence of invasive, hyaline, septate, branched mycelium in the lungs, air sacs, liver and other tissues. In addition, conidiophores and conidial chains, typical of members of the genus Penicillium were present in the lungs and air sacs. Cultures yielded a mould which was subsequently identified as Penicillium griseofulvum. A critical review of the literature revealed that only seven other species of Penicillium have been convincingly documented as agents of penicilliosis on the basis of histologic and cultural findings.
9 citations
Journal Article•
TL;DR: In this article, different food preservatives were screened for their efficacy in the control of cyclopiazonic acid production by Penicillium griseofulvum and they found that sodium metabisulphite, citric acid and propionic acid were effective in controlling P. griseoenc.
Abstract: Different food preservatives were screened for their efficacy in the control of cyclopiazonic acid production by Penicillium griseofulvum. Sodium metabisulphite, citric acid and propionic acid were found to be effective in the control of P. griseofulvum and hence cyclopiazonic acid production
2 citations